Basketball, track and swimming have been staples at the Olympics for decades, drawing thousands of spectators. But solo synchronized swimming or live pigeon shooting?

They are among the strangest events that have, at one time or another, taken place at the games.

Here are the 10 oddest sports that have graced the modern Olympics:

RACE WALKING

In this sport, competitors try to outrace one another -- without actually running. Huh? Even though the premise seems a little goofy, race walking has actually been an Olympic sport since 1904.

To ensure that athletes do not run, race walkers must have one foot on the ground at all times or risk disqualification. The result? A distinctive sashay that elicits many a giggle.

Will we see this sport in London?

Yes. Men will compete in 20-kilometer and 50-kilometer races; women in 20 kilometers. Ready, set, sashay!

TRAMPOLINE

Despite seeming like an activity you did in your backyard when you were 10, trampoline debuted as an Olympic sport in 2000.

Gymnasts take to the trampoline, somersaulting and flipping as stern-faced judges keep score.

"Precise technique and perfect body control are vital for success, with judges delivering marks for difficulty, execution and time of flight, minus penalties," Olympic officials say.

Will we see this sport in London?

Yes. Both men and women trampolinists (yes, that is a word) will compete in London.

SOLO SYNCHRONIZED SWIMMING

Oxymoron alert! Yes, this sport features one female swimmer synchronizing with herself. The sport made its debut in the Los Angeles Games in 1984, with U.S. swimmer Tracie Ruiz winning the gold medal.

Similar to the group event, a swimmer performs a kind of water ballet. A lonely water ballet.

Despite the seemingly misleading title, organizers of the sport say the swimmer is actually in sync with the music.

Will we see this sport in London?

No. But there will be the team synchronized swimming events that most people are familiar with. The solo event was discontinued after 1992.