Step into an American railroad terminal at the turn of the 20th century or imagine a Roaring ’20s ball. A stay at one of Carlson Hospitality’s historic U.S. hotels offers all the desired modern comforts while evoking the romance and spirit of ages past.

The allure of an arched entry, the shine of a polished marble floor, the strength of a towering column: You needn’t be an architect to appreciate the qualities of a beautiful building. And historic sites are almost always beautiful in some way. They are treasures of the past, reminders of how society continues to change.

A program honoring such special places, the National Trust Historic Hotels of America, recently announced the addition of two Carlson Hospitality Worldwide properties to its ranks, bringing the total number to three. Member hotels are judged for architectural integrity, preservation efforts and historical significance.

New to the National Trust is the Radisson Plaza Lord Baltimore, constructed in 1928 and once Maryland's largest hotel. It combines Renaissance revival style with American influences and stands in a prominent, active downtown neighborhood. The 23-story hotel was originally named Lord Baltimore Hotel for the founder of the Maryland Colony. It’s within walking distance of the Plaza, Oriole Park and the National Aquarium.

An impressive building of sturdy, sculpted brick, the Radisson Hotel Bethlehem also takes its place among America’s premier historic hotels. Built in 1922 on the site of Pennsylvania’s first house, it quickly became the center of social events in Lehigh Valley, Pennsylvania. Like its peer properties, the hotel offers modern amenities and bustling city surroundings.

Already a member of the National Trust, Alabama’s Radisson Admiral Semmes Hotel in Mobile remains a Gulf Coast hot spot. An oval balcony lobby, curving staircase, central hanging chandelier and original 1940 Art Deco elevator doors all greet guests in this landmark named for Confederate naval commander Raphael Semmes.

A tour of historic Carlson properties isn’t complete without the newest addition in downtown Philadelphia. Long the top choice for celebrities and dignitaries, the Radisson Plaza-Warwick Hotel Philadelphia features stately English architecture, luxurious rooms and a 75-year reputation of excellence. Its location is a perk—just off prestigious Rittenhouse Square.

Guests at the neoclassical Radisson Lackawanna Station Hotel in Scranton, Pennsylvania, still walk its mosaic tile floors and marvel at the murals and barrel-vaulted Tiffany stained-glass ceiling, just as travelers did when it opened in 1908 as a railroad terminal.

Once home to baseball legend Joe DiMaggio, the Radisson Lexington Hotel New York exudes all the grandeur of its East Side setting. The Normanesque terra-cotta winged lions adorning the facade symbolize the hotel’s status as a hospitality landmark since 1929.

Celebrate American heritage with a visit to these landmarks or any Carlson properties located near historic U.S. sites. For information, visit www.radisson.com.