This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

The final resting place of the great navigator, or maybe his brother.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This Hindu temple is an architectural marvel designed and built according to ancient Indian principles.

Yo, Adrian!

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

The eccentric mansion of one the most popular horror authors of modern times.

This massive solar system model is sprawled out across Maine's suburban wilderness.

These powerful, if squat, Canadian waterfalls flow in different directions depending on the time of day.

This nature mural exists to protect the surrounding environment and its own canvas from destruction.

The only surviving prototype of Buckminster Fuller's revolutionary car.

The California capital city once stood 10 feet lower than it does today.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

Established in the '60s, a family-owned tropical drink bar founded by Ray Buhen, bartender to the stars.

One of the few surviving original NASCAR dirt-track speedways.

One of the oldest Black communities in western North Carolina and one of the largest Black Mennonite congregations in the country.

From golden eagles to peregrine falcons, this rehabilitation and education center is a haven for birds of prey.

From failed port town to Civil War fort, the ruins of this former defense saw their finest day in the television age.