This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

This Georgian mansion blends historical significance with an impressive art collection within picturesque surroundings.

One of London’s rare Tudor-era buildings is a fate-defying gatehouse for a church.

An abandoned early 20th-century gold mine in a spectacular setting overlooking Bridgeport Valley and the Sierra Nevada.

At almost 900 feet long, this is Bulgaria's longest suspension bridge and the only way to reach the small village of Lisitsite.

If you dare visit this fort, fire-breathing hyenas might devour your camels.

This Gothic revival structure has been a family home, a military base, a gymnastics center, and is now owned by one of the largest auction houses in Italy.

The San Marino-Rimini railroad was short-lived but this tunnel once provided shelter for hundreds of refugees during World War II.

A grueling 699-step stairway to a heavenly view of the island of Saint Helena.

This historic line is a remnant of an ambitious and unconventional project that today provides panoramic views of the Ligurian mountains.

A charming Amazigh village carved into a mountaintop.

The world's largest collection of historic U.S. military naval vessels.

How did a 154-foot-long piece of spacecraft wind up abandoned along the side of a Florida road?

This 18th-century water provider for Aranjuez was refurbished in 2013 only to be neglected again.

You can still walk across this beautiful medieval bridge in Andorra.

Founded by French colonists in 1919, this mountain resort has been transformed into one-of-a-kind theme park.

Several colorful mosaic panels depict the life and creative genius of the Master of Suspense.

Walk down these stairs to get an underwater view of Switzerland's Lake Zug.

This impressive ledge seems to float above the Upper Buffalo Wilderness.

A marine aquarium with an astounding variety of fish hides in the basement beneath the famous Palm House.

Collection of scores of race cars from the 1900s to recent lovingly maintained and displayed.

The only remaining hotel on the 1860s Henness Pass route over the Sierra Nevada is being restored.

These 4,444 wooden steps straight up a mountain were built to serve a hydroelectric power station but these days, they're mostly used by hikers.

Built in 1925, this glass-roofed shopping arcade is known for its modernist Italian architecture.